I have periods of being somewhat friendly(and having friends), to being a complete loner, and about a year ago, I was going through the former phase. I was in a different city at that time.
I didn't have this problem before, but now, whenever I am playing music and one of the songs I used to listen to during that period of time starts playing, I have to immediately change it, or it brings back "memories" and leaves me depressed. Also, random people on the streets are now looking like the people I knew back then.
I don't want to be depressed. I'm trying my best to stay away from these "triggers"(Oh my god I sound like those Tumblr people), but I don't want to do that.
I don't know what to do, why is this happening?
Apologies if this is the inappropriate subforum for this post, I couldn't figure out any better place to post this.